For the 2020 Volkswagen Golf, the low-beam headlight uses an H7 bulb, while the high beam uses a 9005. The supplied fitment data does not identify separate projector or non-projector headlight variations, so verify the existing bulb and housing before ordering if your Golf has a different headlight assembly.
The front fog lights use H11 bulbs. For exterior lighting, the front turn signals use 7440A bulbs, the parking lights use 194 bulbs, and the license plate lights use 12961 bulbs.
Interior and cargo lighting uses two different sizes: the dome light takes a 12961, while the trunk light takes a DE3425. No reverse-light bulb fitment is listed in the supplied data, so that application should be checked separately before purchase.